Glowing Stone called luminous cobblestone, photoluminescent cobblestone, luminescent pebble, is a man-made glowing stone, With a shape of cobblestone, spall or sand, is a kind smart artificial plastic products or silicate products, with special luminescent pigment (glow in the dark powder) and special synthetic resin or silicate compound. When exposed to light sources, the photoluminescent pigment inside Luminous cobblestone becomes excited and glow in the dark with very stronger initially , then reducing slowly overnight.
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